usb 3-1: New USB device found, idVendor=0a07, idProduct=00da, bcdDevice=8f.48 usb 3-1: New USB device strings: Mfr=0, Product=0, SerialNumber=0 usb 3-1: config 0 descriptor?? BUG: kernel NULL pointer dereference, address: 0000000000000000 #PF: supervisor read access in kernel mode #PF: error_code(0x0000) - not-present page PGD 1c8fef067 P4D 1c8fef067 PUD 1be812067 PMD 0 Oops: 0000 [#1] SMP KASAN CPU: 1 PID: 22 Comm: kworker/1:1 Not tainted 5.6.0-rc5-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Workqueue: usb_hub_wq hub_event RIP: 0010:__read_once_size include/linux/compiler.h:199 [inline] RIP: 0010:__sanitizer_cov_trace_pc+0x42/0x60 kernel/kcov.c:202 Code: 34 24 74 0e 80 e6 01 74 34 80 b8 d4 12 00 00 00 74 2b 8b 90 b0 12 00 00 83 fa 02 75 20 48 8b 88 b8 12 00 00 8b 80 b4 12 00 00 <48> 8b 11 48 83 c2 01 48 39 d0 76 07 48 89 34 d1 48 89 11 c3 66 2e RSP: 0018:ffff8881da3df358 EFLAGS: 00010246 RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000000 RDX: 0000000000000002 RSI: ffffffff8362b12e RDI: 0000000000000005 RBP: dffffc0000000000 R08: ffff8881da27b100 R09: fffffbfff1266e8f R10: fffffbfff1266e8e R11: ffffffff89337477 R12: ffffffff8646e840 R13: ffff8881d33eb000 R14: 0000ffffffff0000 R15: 0000ff0000ff0000 FS: 0000000000000000(0000) GS:ffff8881db300000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000000000000 CR3: 00000001ce162000 CR4: 00000000001406e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: usb_match_id.part.0+0x3e/0x120 drivers/usb/core/driver.c:796 usb_match_id drivers/usb/core/driver.c:788 [inline] usb_device_match drivers/usb/core/driver.c:855 [inline] usb_device_match+0xf3/0x300 drivers/usb/core/driver.c:820 driver_match_device drivers/base/base.h:140 [inline] __device_attach_driver+0x8c/0x290 drivers/base/dd.c:811 bus_for_each_drv+0x162/0x1e0 drivers/base/bus.c:431 __device_attach+0x217/0x390 drivers/base/dd.c:897 bus_probe_device+0x1e4/0x290 drivers/base/bus.c:491 device_add+0x1459/0x1bf0 drivers/base/core.c:2500 usb_set_configuration+0xe47/0x17d0 drivers/usb/core/message.c:2023 usb_generic_driver_probe+0x9d/0xe0 drivers/usb/core/generic.c:241 usb_probe_device+0xd9/0x230 drivers/usb/core/driver.c:272 really_probe+0x290/0xac0 drivers/base/dd.c:551 driver_probe_device+0x223/0x350 drivers/base/dd.c:724 __device_attach_driver+0x1d1/0x290 drivers/base/dd.c:831 bus_for_each_drv+0x162/0x1e0 drivers/base/bus.c:431 __device_attach+0x217/0x390 drivers/base/dd.c:897 bus_probe_device+0x1e4/0x290 drivers/base/bus.c:491 device_add+0x1459/0x1bf0 drivers/base/core.c:2500 usb_new_device.cold+0x540/0xcd0 drivers/usb/core/hub.c:2548 hub_port_connect drivers/usb/core/hub.c:5195 [inline] hub_port_connect_change drivers/usb/core/hub.c:5335 [inline] port_event drivers/usb/core/hub.c:5481 [inline] hub_event+0x21cb/0x4300 drivers/usb/core/hub.c:5563 process_one_work+0x94b/0x1620 kernel/workqueue.c:2264 worker_thread+0x96/0xe20 kernel/workqueue.c:2410 kthread+0x318/0x420 kernel/kthread.c:255 ret_from_fork+0x24/0x30 arch/x86/entry/entry_64.S:352 Modules linked in: CR2: 0000000000000000 ---[ end trace 4c9e184fe6fd0953 ]--- RIP: 0010:__read_once_size include/linux/compiler.h:199 [inline] RIP: 0010:__sanitizer_cov_trace_pc+0x42/0x60 kernel/kcov.c:202 Code: 34 24 74 0e 80 e6 01 74 34 80 b8 d4 12 00 00 00 74 2b 8b 90 b0 12 00 00 83 fa 02 75 20 48 8b 88 b8 12 00 00 8b 80 b4 12 00 00 <48> 8b 11 48 83 c2 01 48 39 d0 76 07 48 89 34 d1 48 89 11 c3 66 2e RSP: 0018:ffff8881da3df358 EFLAGS: 00010246 RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000000 RDX: 0000000000000002 RSI: ffffffff8362b12e RDI: 0000000000000005 RBP: dffffc0000000000 R08: ffff8881da27b100 R09: fffffbfff1266e8f R10: fffffbfff1266e8e R11: ffffffff89337477 R12: ffffffff8646e840 R13: ffff8881d33eb000 R14: 0000ffffffff0000 R15: 0000ff0000ff0000 FS: 0000000000000000(0000) GS:ffff8881db300000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000000000000 CR3: 00000001ce162000 CR4: 00000000001406e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400